(n.) A neck or narrow slip of land by which two continents are connected\, or by which a peninsula is united to the mainland; as, the Isthmus of Panama; the Isthmus of Suez, etc.

abbreviation astriction astringency bottleneck canal cervix channel circumscription coarctation compactedness compaction compression compressure concentration condensation consolidation constriction constringency contraction contracture curtailment decrease defile diminuendo hourglass hourglass figure knitting narrow narrow place narrowing narrows neck pass puckering pursing reduction shortening solidification strait stranglement strangulation striction stricture systole throat wasp waist wrinkling